Cyril of Alexandria — as excerpted in the Catena Aurea on Luke 20:41-44

“Or, that He sits on the Father’s right hand proves His heavenly glory. For whose throne is equal, their Majesty is equal. But sitting when it is said of God signifies a universal kingdom and power. Therefore He sitteth at the right hand of the Father, because the Word proceeding from the substance of the Father, being made flesh, putteth not off His divine glory.”